R1 Concepts 623-31070L RNC Series Drilled Disc Brake Rotor - Left

The R1 Concepts 623-31070L is a RNC Series drilled disc brake rotor engineered to deliver improved stopping performance and thermal management over standard OEM rotors. Precision-drilled holes promote maximum heat dissipation, helping to reduce brake fade during demanding driving conditions.

Key Features:

• Precision Cross-Drilled Holes: Countersunk design promotes airflow and heat escape, reducing rotor temperature and minimizing thermal stress to help prevent cracking
• G3000 Grade Cast Iron Construction: Meets or exceeds OEM material standards for strength, durability, and consistent braking performance
• Zinc Plating: Protective zinc coating guards against corrosion and rust for longer rotor life and improved appearance
• Direct-Fit Replacement: Engineered to OEM specifications for a no-modification, bolt-on installation
• Left (Driver) Side: MPN suffix designates this as the left-side rotor — verify your application before ordering

R1 Concepts rotors are manufactured to provide reliable, consistent braking performance mile after mile. The 623-31070L is a direct replacement drilled brake rotor suitable for street driving and light performance applications where improved cooling and fade resistance are priorities.